Equipment
Ingredients
Couscous Base
- 100 g dry couscous, uncooked
- 120 ml vegetable broth, hot
- 15 ml extra virgin olive oil
- 1 garlic, minced
Packet Fillings
- 150 g asparagus, woody ends trimmed, cut into 5cm pieces
- 100 g cremini mushrooms, thinly sliced
- 40 g prosciutto, torn into bite-sized pieces
Seasoning & Garnish
- 2 fresh thyme, whole sprigs
- 1 lemon, half juiced, half cut into wedges
- sea salt
- black pepper
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 341 kcal
- Protein
- 15 g
- Carbohydrates
- 46 g
- Fat
- 11 g
- Fiber
- 5 g
- Sugar
- 3 g
- Sodium
- 777 mg
- Saturated Fat
- 2 g
- Monounsaturated Fat
- 6 g
- Polyunsaturated Fat
- 1 g
- Potassium
- 614 mg
- Calcium
- 52 mg
- Iron
- 3.0 mg
- Magnesium
- 41 mg
- Phosphorus
- 191 mg
- Zinc
- 1.4 mg
- Vitamin A
- 39 mcg
- Vitamin C
- 10 mg
- Vitamin D
- 0.1 mcg
- Vitamin E
- 1.9 mg
- Vitamin K
- 37 mcg
- Vitamin B6
- 0.2 mg
- Vitamin B12
- 0.1 mcg
- Thiamin
- 0.26 mg
- Riboflavin
- 0.40 mg
- Niacin
- 4.5 mg
- Folate
- 63 mcg
- Water
- 187 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Preheat your oven to 200°C/400°F. Cut two large rectangles of parchment paper, about 30x40cm each, and fold them in half widthwise to create a crease, then open them back up.
In a mixing bowl, combine the dry couscous, hot vegetable broth, olive oil, minced garlic, a pinch of sea salt, and black pepper. Stir briefly and let it sit for 5 minutes to begin hydrating the couscous.
Divide the partially hydrated couscous evenly between the two pieces of parchment paper, placing it close to the center crease. Top the couscous beds evenly with the sliced mushrooms and asparagus pieces.
Scatter the torn prosciutto over the vegetables. Drizzle lightly with lemon juice, and place a sprig of fresh thyme on top of each mound.
Fold the top half of the parchment paper over the ingredients. Starting at one end of the crease, tightly fold and crimp the open edges over themselves in small, overlapping pleats to create a completely sealed half-moon packet.
Place the sealed packets on a baking sheet and bake at 200°C/400°F for 15 minutes. The packets should puff up with steam.
Remove from the oven and let rest for 2 minutes. Carefully slice open the top of the parchment packets, watching out for the escaping hot steam. Serve immediately with fresh lemon wedges.
Chef's Notes
- Tightly sealing the parchment is non-negotiable; fold the edges over themselves in small, overlapping pleats to trap the steam effectively.
- Tearing the prosciutto rather than chopping it creates irregular, textured edges that crisp up beautifully during the steaming process, providing contrast to the tender vegetables.
- Pre-mixing the couscous with hot liquid ensures it hydrates evenly without leaking out of the parchment packet during the folding process.
- For an even richer flavor profile, substitute a splash of dry white wine for part of the vegetable broth during the couscous hydration step.
Storage
Refrigerator: 3 days — Store in an airtight container; discard parchment before storing.
Reheating: Microwave for 60-90 seconds until steaming, or warm in a 175C/350F oven for 10 minutes.
Troubleshooting
Couscous is crunchy or undercooked
Cause: Steam escaped the packet due to poor crimping, or the broth was not hot enough during the pre-hydration step.
Fix: Add 15ml of hot water to the open packet, cover tightly with foil, and bake for 3-5 additional minutes.
Prevention: Ensure tight, heavily overlapping folds when sealing the parchment. Always use hot broth for the initial mix.
Asparagus is stringy and tough
Cause: The woody ends of the asparagus were not removed.
Fix: Cannot be fixed
Prevention: Snap off the bottom ends of the asparagus before slicing; they will naturally break where the woody part meets the tender stem.
Cultural Context
Cooking en papillote is a classic French technique that traps steam to gently cook delicate ingredients while preserving their intrinsic moisture, aromas, and nutrients. By applying this refined method to everyday Mediterranean staples like couscous, asparagus, and prosciutto, we create a modern, fuss-free spring dinner. This approach bridges rustic flavor combinations with elegant, zero-cleanup methodology.
